中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Quantum measurement of a solid-state qubit: A unified quantum master equation approach
作者: Li, XQ;  Zhang, WK;  Cui, P;  Shao, JS;  Ma, ZS;  Yan, YJ
刊名: PHYSICAL REVIEW B
发表日期: 2004-02-01
DOI: 10.1103/PhysRevB.69.085315
卷: 69, 期:8
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Physics, Condensed Matter
研究领域[WOS]: Physics
英文摘要: Quantum measurement of a solid-state qubit by a mesoscopic detector is of fundamental interest in quantum physics and an essential issue in quantum computing. In this work, by employing a unified quantum master equation approach constructed in our recent publications, we study the measurement-induced relaxation and dephasing of the coupled-quantum-dot states measured by a quantum-point contact. Our treatment pays particular attention on the detailed-balance relation, which is a consequence of properly accounting for the energy exchange between the qubit and detector during the measurement process. As a result, our theory is applicable to measurement at arbitrary voltage and temperature. Both numerical and analytical results for the qubit relaxation and dephasing are carried out, and important features are highlighted in concern with their possible relevance to future experiments.
关键词[WOS]: DOT ;  DETECTOR
语种: 英语
WOS记录号: WOS:000220185100065
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138444
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Chinese Acad Sci, Inst Semicond, Natl Lab Superlattices & Microstruct, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing 100080, Peoples R China
3.Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Hong Kong, Peoples R China
4.Peking Univ, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China
5.Peking Univ, Dept Phys, Beijing 100871, Peoples R China

Recommended Citation:
Li, XQ,Zhang, WK,Cui, P,et al. Quantum measurement of a solid-state qubit: A unified quantum master equation approach[J]. PHYSICAL REVIEW B,2004,69(8).
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Li, XQ]'s Articles
 [Zhang, WK]'s Articles
 [Cui, P]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Li, XQ]‘s Articles
 [Zhang, WK]‘s Articles
 [Cui, P]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace